You should give the source (a link to the article) whenever you copy paste stuff.
Going all in on Bitcoin is only something the fool hardy might try now. Peter Thiel might be able to afford to do this, given his background. For ordinary investors, it is better to take limited exposure, which they really wouldn't mind losing. My personal view is that cryptos shouldn't account for more than 5% of your portfolio.
I agree with you mate. But proper diversification like investing in bonds, stocks, gold, whatever is only possible when you have accumulated really big capital already, on the order of many thousands of dollars and more. If you don't have that much, diversification is meaningless and won't give any worthy returns unlike what going all in on crypto could potentially offer. Well, that's what I think.